POS-1000T+ User Manual
Contents
1. FREQUENCY MHz 100 00 IR WARD TARGET W 0000 EFLECT TARGET w FM Monitor symbol Can t connect to transmitter P05 5000CM 1 0 is er Management E mwa a Ke aS hi T gt 22 45 Double click on the FM Monitor symbol the software will be show as FM Monitor By POS Broadcast 11077 FREQUENCY MHz Freg Lock AUDIO MoD LEFT RIGHT RF POWER Temperature C3 OM AIR EE gh FORWARD Wy WPA olt REFLECT i I PA Amp Power oy ween aeaaea COT REFLECT TARGET Mo TEMP PROTECTION C User manual V1 2 www posbroadcast com 9 of 19 POS 1000T 2 5 3 Software configuration You can set the value as you re requested Then click SET The parameter will be show and change on LCD of the transmission e Power set gt ON the RF output of transmission is on OFF the RF output of transmission is stanby e Frequency set gt the values for frequency use e Forward target set gt the values for RF output of transmission limit e Reflect target set gt the values for maximum RF power reflect of transmission protection limit e Temp protection set gt the values for maximum temperature of transmission protection limit The value from software FM Monitor should be related to LCD of transmission LCD display Remote power ON FM Monitor By POS Broadcast POWER ID a 41077 ID 11077 FREQUENCY Eons fen tae LCD display gt Freq 100 00 MHz Locked l2. FREQUENCY MHz LCD display TGFWD 50W gt TGRFL SW RIGHT RF POWER Temperature tE ON AIR FORWARD vi VPA Wolt 485 TEMP PROTECTION C REFLECT th I PA Amp REFLECT TARGET w LCD display AUDIO SEEREREEEEEAS sai SREEE EB bbirela FORWARD TARGET Ta EEEE TPA 39C Power by wee OS O0 ASt CON gt TG TPA SOC User manual V1 2 www posbroadcast com 10 of 19 3 External Description 3 1 Front Panel FM TRANSMITTER i POS 1000T This chapter reports the elements of the front and rear panels of the POS 1000T with a brief description of each of them 100000 JUUUCUOL JUUUUUSUOUUUUOUU JUUUUUSUOUUUUOUU JUUUUUUUUUUUUOUU 1 AIR FLOW 2 POWER 3 ON 4 LOCK 5 ALARM 6 RE ON 7 UP 8 DOWN 9 ENTER 10 ESC 11 DISPLAY User manual V1 2 Grid for the intake of the air flow of the forced ventilation ON OFF switch This switch disables the exciter without disconnecting the mains supply Green LED light when the exciter is working Green LED light when the PLL is locked on the working frequency Red LED light when the alarm function is operating Low power high reflect power high SWR or high temperature Green LED light when the exciter s power output is on Push button to increase value Push button to decrease value Push button to confirm a parameter Push button to change and exit from a menu
3. POS 1000T POS 1000T JUU00 US JU UCUUU JUUUUUUU0UUUUUU M l JUSUUUSUOUUUUOUL JUUUUUUUUUUUUOUU User Manual l of 19 POS 1000T 1 General Description 2 Installation and use Description 2 1 Preparation 2 2 Use 2 3 Settings and calibration 2 4 Front panel control 2 5 Software control 3 External Description 3 1 Front Panel 3 2 Rear Panel 3 3 Connector Description 4 Technical Specifications 4 1 Physical specifications 4 2 Electrical specifications 5 Working Principles 5 1 Power Supply 5 2 Regulate Board 5 3 LCD Board 5 4 Fuse Board 5 5 Control Board 5 6 PLL VCO Encoder Board 5 7 Interface Board 5 8 Power Amplifier Board 6 Internal Description 6 1 Internal View 7 Web browser application User manual V1 2 Contents www posbroadcast com 2 of 19 POS 1000T 1 General Description The POS 1000T is an exciter for Frequency Modulated audio broadcasting in a frequency modulation able to transmit in the band between 87 5 and 108 MHz with an output RF power adjustable up to a maximum of 1000 W Outstanding audio features this device has are low distortion and inter modulation values and the high signal to noise ratio Another important feature the POS 1000T has is its great simplicity of construction and use The POS 1000T was designed to be modular Its various functions are run from modules directly connected to each other with male and female connectors or with flat cables end
4. to set the desired operating frequency By using the switches and trimmer found on the rear panel set the characteristics impedance pre emphasis and if it s necessary stereo mono and the levels of the audio and RDS input Set the desired power level from the LCD menu 2 3 Settings and calibration A trimmer for each one of the exciter s inputs is on the rear panel of the device The printing on the panel indicates which input each trimmer refers to The sensitivity of the various inputs can be adjusted using the trimmers within the limits described User manual V1 2 www posbroadcast com 4 of 19 POS 1000T e Stereo or Mono mode Switch 1 ON Mono OFF Stereo Switch 2 No use e Stereo pre emphasis 50 us 75 us e Left and right input impedance Switch1 ON 600 ohm OFF 10kohm Switch2 ON 600 ohm OFF 10kohm 2 4 Front panel control The machine is provided with a two line LCD display where a set of menus is shown When turned on the LCD display shows the predefined screen with the graphic representation of the instantaneous modulation level and indication of the direct power supplied MOD I FWD 1509 2 W The vertical bars under MOD indicate the progress of the modulation in real time the hatched bar signals the maximum nominal modulation level of 75 kHz 100 User manual V1 2 www posbroadcast com 5 of 19 POS ros To change the menu select the UP or DOWN push button the
5. balanced input impedance 6000 or 10kQ XLR connector balanced Left Mono channel input Adjustment trimmer for Left Mono channel input BNC connector MPX unbalanced input Adjustment trimmer for MPX input BNC connector SCA1 unbalanced input Adjustment trimmer for SCA1 input BNC connector SCA2 unbalanced input Adjustment trimmer for SCA2 input BNC output for the 19 kHz pilot tone This can be used for external devices e g RDS coders synchronization Ground connect to earth Mains supply plug 180 240V 50 60 Hz Grid for the intake of the air flow of the forced ventilation www posbroadcast com 12 of 19 POS 1000T ARC A 3 3 Connector Description 3 3 1 RS 232 Type DB9 female OONOORWND G Zz U 3 3 2 Remote Type DB15 female INTERLOCK IN 9 INTERLOCK OUT Frequency lock 10 NC GND 11 GND GND 12 GND Modulation level Forward 14 PA temperature Reflect 15 PA current PA voltage ooo0oo0oo0o000 OO00000 o NOJN AOUN Z O _ SP 3 3 3 Audio input LEFT RIGHT Type XLR female 1 GND 2 Positive l 3 Negative User manual V1 2 www posbroadcast com 13 of 19 POS 1000T 4 Technical Specifications 4 1 Physical specifications Panel size Depth Weight Working Temperature 4 2 Electrical specifications General RF output power RF output connector RF output impedance Frequency range Frequency setting Frequency step Frequency s
6. screen that is shown in following VPA 49 2V F ews 549 Wa I ee ce er J a J TPA 39C gt TG TPA SOC TG FWD py gt TG RFL be nemore power ON af 11077 j ee ae a 100 00 we ee ae a _ oom User manual V1 2 www posbroadcast com 6 of 19 POS 1000T 2 4 1 Power setting To change the set power level select the menu power as below gt Fwd 31 0 W Rfl 0 0 W Keep the ENTER push button The screen that is show in the modification mode is similar to the following Delay 3 second To increase the level press the UP push button and to reduce it press DOWN As the set level increases or decreases the bar becomes longer or shorter to display the current setting When the designed level is reached press ENTER to confirm and exit the predefined menu 2 4 2 RF Power ON OFF To change the RF power ON or OFF select the menu power as below SWR 1 0 E SWR 1 0 gt Power ON ENTER gt Power OFF Pan 2 4 3 Frequency setting This menu lets you read and set the operating frequency gt Freq 100 00 MHz Locked Keep the ENTER push button The screen that is show in the modification mode is similar to the following User manual V1 2 www posbroadcast com 7 of 19 POS POS 1000T gt Freq 100 00 MHz gt Freq 100 00 MHz Locked a gt gt gt gt gt Delay 3 second By pressing the ENTER push button you can modify the
7. set frequency using the UP the frequency increases and DOWN push buttons After having set a new frequency value press the ENTER push button to confirm the choice The exciter will release from the current frequency and it will latch onto the new operating frequency 2 5 Software control 2 5 1 Software installation To get the software you can get software by CD Rom or download from www posbroadcast com Then you can easy installation software on your computer refer to Window application 2 5 2 Software monitor When you connect to the transmission via RS232 port and turn on you can open the software by the ways as POS Broadcast p a Si Microsoft Update lt d My Bluetooth Places Set Program Access and Defaults m Thinkvantage Productivity Center TS windows Catalog Protel 99 SE Program Updates E T rograms Documents Search 2 Ca Settings Pa o Help and Support J Bun Log Off Kittisak Turn OFF Computer e Windows XP Professional User manual V1 2 www posbroadcast com S of 19 POS POS 1000T After click open the software FM Monitor you can get the symbol on bottom right on your computer Connected to transmitter FREQUENCY MHz 160 04 JFWARD TARGET RW wa EFLECT TARGET w MF PROTECTION C FM Monitor symbol Connect to transmitter Fo5 5000 M V1 0 er Management Eng S 1 37 INA AEE Can not connected to transmitter
8. ERFACE CONTROL All parameter pontrol feed to microprocessor prapmemmed fran trent menu or via RIJ with window sofracare WEB SOLUTIONS These operations are achievable nemotely Wag a few inthnumisnts such i any web browser any PAM browser a modem all any to fired SMD Technology The SMO technology design enqures reliable epersiom BrobEction and peerfarmnance under ary oocnaing More gt FM Amplifier 0 Day 0 Hour 10 Minute 56 Sec 11501 ON 19 of 19
9. Liquid crystals display www posbroadcast com Il of 19 1 RIGHT MONO 2 RIGHT MONO ADJ 3 PREENPHASIS 4 MODE 5 FUSE 6 RE OUTPUT 7 RF TEST 8 REMOTE 9 INTERLOCK IN 10 RS232 11 INTERLOCK OUT 12 IMPEDANCE 13 LEFT MONO 14 LEFT MONO ADJ 15 MPX RDS 16 MPX RDSADJ 17 SCA 1 18 SCA1 ADJ 19 SCA 2 20 SCA2 ADJ 21 19 KHZ OUT 22 GND 23 PLUG 24 AIR FLOW User manual V1 2 POS 1000T al BY Taar CO eu J 0000 2 000000001 000000 00000C0000 0000000000000000 XLR connector balanced Right channel input Adjustment trimmer for the Right channel input Dip switch to set the pre emphasis at 50 or 75 us The pre emphasis setting is only relevant for the Left and Right inputs in stereo mode and for the mono input in mono mode while MPX input is unaffected by this setting Dip switch to set the operation mode STEREO or MONO Fuse holder Use a screwdriver to access the fuse Contains the general protection fuse rated 15 A RF output connector 7 16 type 500 RF test output approx 60 dB of the RF output power level DB15 connector for telemetry of the machine BNC interlock in connector the exciter is forced in stand by mode when the inner conductor is grounded DB9 connector for interconnection with other devices and for factory parameters programming BNC interlock out connector the inner short to ground when alarm is on Dip switch to set the
10. gement software is based on a menu system The user can navigate between the various submenus by using four push buttons UP DOWN ENTER and ESC User manual V1 2 www posbroadcast com 3 of 19 POS 1000T 2 Installation and use Description This chapter contains the necessary information for installing and using the machine In the event any aspects are not completely clear for example when using the machine for the first time we recommend you carefully read the entire description contained in this manual 2 1 Preparation Unpack the exciter and before doing any other operation be sure it has not been damaged during transport In particular check that all the connectors are in perfect condition The main fuse can be accessed from the outside on the rear panel Extract the fuse carrier with a screwdriver to check its integrity or for replacement if necessary The fuse to be used is this type 15A 220VAC Check that the POS 1000T switches are in the OFF position The exciter has one switch for the mains power supply cable and completely interrupts the machine s mains power supply Connect the RF output of the exciter to the antenna cable or to a fictitious load 50 ohm Connect the mains cable Connect the earth cable Connect the audio cables of the signal source to the proper connectors on the back of the exciter 2 2 Use Check that the POS 1000T switches are in the ON position Enter the ESC menu and ENTER
11. ied and is then sent to the first stage that sees to its amplifications up to 30W The amplifier is made in two stages The first is made with BGF35 and the last with one BLF175 5 9 Power Amplifier Board The final power stage is enclosed in a totally shielded metal container fastened in the centre of the device The RF signal coming from the exciter sent to the splitter amplifier combiner low pass filter and directional coupler stage that sees to its final amplifications up to 1000W The amplifier is made in three modules Every RF module supplied up to 350W This active device used in amplifier module is a Mosfet SD2942 These amplifier modules combine with Wilkinson Splitter and Combiner in strip line 5 10 LPF Board This board is mean Low Pass Filter LPF is function is to suppress the harmonic components generate by the amplifier below the level required by regulations This board includes a direction coupler is function is the measurement of the forward reflect output power and RF sample at 60dB User manual V1 2 www posbroadcast com 17 of 19 p O POS 1000T 6 Internal Description 6 1 Top view The figure below shows the view from above the machine 1 2 3 4 5 6 7 Ti ave a M 2 M amp M a D i T i i 1 A PLL VCO Encoder board Power supply 12V 8A Regulate board Power factor correction unit Power supply unit 32A 48V Control board LCD board Directional coup
12. ing in connectors This type of design makes maintenance operations and any required module replacement easier All models are made with SMD technology This exciter contains a low pass filter that reduces the harmonic emissions to below the limits allowed by international regulations and can therefore be used as a transmitter connected directly to the antenna The machine is offered in two versions one for Mono or MPX input wideband input that is useful when you want to transmit in stereo using an external stereo encoder and the other with an integrated stereo encoder The POS 1000T stereo encoder guarantees excellent stereo separation together with a low harmonic distortion level Also the stereo version of the exciter can be configured for operating in Mono MPX mode meaning excluding the stereophonic coder and using the left input as the mono input and the BNC as the MPX The user can do the configuration through micros witches that are accessible from the outside Both versions have two inputs SCA1 and SCA2 for modulated signals on sub carriers from special external encoders normally used in Europe for RDS Radio Data System transmission The microprocessor system includes an LCD display and push button panel for inter action with the user and implements the following functions e Setting the output power e Setting the operating frequency e Measurement and display of the working parameters of the exciter The exciter s mana
13. ler Low Pass Filter 10 Power Combiner 11 Power amplifier SD2942 X 3 12 Power Splitter 13 Fuse board 14 Coupler power input board 15 Blower eo ee User manual V1 2 www posbroadcast com 18 of 19 POS POS 1000T 7 Web browser application You can monitor and configuration all parameter to transmitter via web browser It easy to connect anywhere and update status your transmitter Please see application on www posbroadcast com telemet POS Performance feature Model POS Link FEATURE www posbroadeast com EE Easy to direct web browser Connect via TCP IP 10 100 Mbit Ethernet _ Monitor and setup parameter o gt Support R5232 te 2 input and 2 out T A Remoter AC power supply ON OFF Switching power supply Compact size only 1U 19 rack Stainless stael box Low cost Easy installation Items Station On Time Station ID Power ON AIR Frequency MHz Modulation Level Signal Level Left Signal Level Right Frequency Lock Power Forward Output Watts Power Reflect Output Watts PA Temperature C PA Voltage V PA Current A User manual V1 2 Network Monitoring System On Time 0 Day 0 Hour 51 Minute 27 Sec FM Exciter 0 Day 0 Hour 1 Minute 50 Sec 11701 ON ON www posbroadcast com l 4 Search FM Netw EASY TO MAINTENANCE All module engineering eure extreme ease of accent and dimple maantenance INT
14. o frequency response Total harmonic distortion THD Stereo separation Connections Interlock connector Serial interface Remote gt 70dB 0 5 dB 20Hz 15 KHz lt 0 05 gt 70dB 0 1 dB 20 Hz 53 KHz 0 2 dB 53 KHz 100 KHz lt 0 02 gt 50 dB gt 70 dB 20 Hz 15 KHz lt 0 05 gt 50 dB 2 BNC DB9 female RS232 DB15 female User manual V1 2 www posbroadcast com 15 of 19 POS 1000T 5 Working Principles 5 1 Power Supply POS 1000T power supply is a switching type of unit and its main 24V 2 5A 12V 8 5A and 48 V 32A output feeds the RF amplifier and regulate broad of the machine The power supply is connected to voltage between 180 and 240 V without having to make adjustments or manual settings 5 2 Regulate Board The regulate board for generating continuous 5 V 12V 15V and 20 V voltages for powering the other circuits on the device are present on the power supply 5 3 LCD Board The LCD board contains the microcontroller PIC18F458 that implements the machine s control software the display and the other components needed to interface the user The board interfaces with the other machine modules both for power supply distribution and for the control and measures 5 4 Fuse Board The fuse board contains the fuse current temperature and voltage sensor The board interfaces with the other machine modules both for power supply power amplifier and for the control This circ
15. tability Modulation type Spurious and Harmonics suppression Modulation capability A C power supply Power consumption Input Left Right and Mono Input MPX input Input impedance MPX input impedance Input level Pre emphasis SCA RDS input SCA RDS input impedance SCA RDS input level SCA RDS amplitude frequency response Output RF Out RF test 19 kHz pilot tone output 483 mm 19 x 132 mm 5 1 4 3U 610 mm 24 20 Kg 0 C 50 C O to 1000 W adjustable 7 16 type Female 50 Ohm 87 5 MHz 108 MHz software programming 50 KHz 10 KHz on request 2ppm from 10 C to 50 C direct carrier modulation respects FCC and CCIR standards Typical 75 dBc respects relevant FCC and CCIR standards 180 V 240 V 1700 VA Type XLR female balanced Type BNC unbalanced balanced input 600 or 10 k Ohm selectable unbalanced input 10 k Ohm 13 dBm 13 dBm adjustable Selectable 0 50 us CCIR 75 us FCC 3 BNC unbalance 10 kOhm 20 dBm 13 dBm adjustable 0 2 dB 40 kHz to 100 kHz 7 16 type Female 50 Ohm BNC connector 60 dB BNC connector 1 3 Vp p User manual V1 2 www posbroadcast com 14 of 19 AO A POS 1000T MONO operation S N Amplitude frequency response Total harmonic distortion THD MPX operation Composite S N MPX amplitude frequency response MPX Total harmonic distortion THD Stereo separation Stereo operation S N FM Stereo Audi
16. uit carries out the following functions e Measures current and voltage e Measures temperature 5 5 Control Board The control board contains the measure and control parameter forward reflect voltage current temperature bias etc The board interfaces with the other machine modules both for LCD and power amplifier board 5 6 PLL VCO Encoder Board The PLL VCO Encoder board card carries out the following functions 5 6 1 Encoder section The encoder audio input section contains the circuits that perform the following functions e Input impedance selection e 15 KHz filtering e Pre emphasis selection e Mixing of the signal MPX and SCA channels e Stereo multiplexing e 19 KHz generate e Measurement of the modulating signal e Measurement of the left and right signal User manual V1 2 www posbroadcast com 16 of 19 POS 1000T 5 6 2 PLL section The PLL section of the card generates the signal in modulated radio frequency It is based on a PLL diagram that uses an MC145170 type of integrated PLL For frequency reference use to 4 000 MHz 5 6 3 VCO section The VCO section of the card generates the signal in fm band 87 50 108 MHz It is based on a VCO diagram that uses to 8 varicap tuning diode and MAR 8 low noise amplifier 5 7 Interface Board The interface board needed to interface from LCD board and external machine for setup or monitoring 5 8 Driver Board The RF signal coming from the VCO is amplif
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